I Vision T239 polarized outdoor cycling sunglasses

This Sunglasses have one big advantage that they are polarized tac lenses,As we know polarized lens have many virtue.Polarized light is made up of waves that all vibrate in the same direction, while normal light is made up of waves that don't vibrate in the same direction.  Generally speaking, reflected light is an orderly light.  The polarizing film in polarizing sunglasses is a strong filter for this reflected light, and the lenses allow only polarized waves that vibrate in one direction to pass through.  The reflected light on the road is a special kind of reflected light, which is manifested in the disordered light. The polarizing film layer in polarized sunglasses can play a role, because it does not allow the light wave that vibrates parallel to the road to pass through.  In fact, the long molecules of the filter layer are directed horizontally and can absorb horizontally polarized light.  In this way, most of the reflected light is eliminated without reducing the overall illumination of the surrounding environment.